PROCESS FOR TREATMENT OF A HEAVY HYDROCARBON LOAD INCLUDING A FIXED BED HYDROTREATMENT, TWO PASSHALTS AND A BED HYDROCRAQUAGE BOILING ASPHALT

摘要

The present invention relates to a process for the production of fuel bases comprising a specific sequence of steps comprising a fixed bed hydrotreatment stage, a deasphalting stage of a heavy fraction resulting from the fixed bed hydrotreatment stage, a fixed bed hydrocracking step of the DAO fraction, an ebullating bed hydrocracking step of the asphalt fraction and a deasphalting step of a heavy fraction resulting from the ebullating bed hydrocracking step.